From Longman Dictionary of Contemporary Englishbasebase1 /beɪs/ ●●●S1W1 verb 🔊 🔊 [transitive] to have your main place of work, business etc in a particular place 🔊 The paper had intended to base itself in London.be based in something 🔊 The new organization will be based in Dallas. →based Grammar In this meaning, base is usually either passive or reflexive (=followed by myself/itself etc). →base something on/upon something→ See Verb table
basebase2 ●●●S2W2 noun 🔊 🔊 1lowest part [countable usually singular]BOTTOMa)the lowest part or surface of something syn bottombase of 🔊 There is a door at the base of the tower. 🔊 the base of a triangle 🔊 a frozen dessert with a biscuit base 🔊 a wine glass with a heavy base 🔊 The leather of his left trainer was coming away from its rubber base.b)the lowest point on a plant or part of your body, where it joins another part syn bottombase of 🔊 a hole in the base of the tree 🔊 He was killed by an axe blow to the base of his skull.► see thesaurus at bottom2knowledge/ideas [countable]BASIC the most important part of something, from which new ideas develop syn foundation 🔊 India has a good scientific research base.base for 🔊 They were laying the base for a new economic recovery.3military [countable]PM a place where people in a military organization live and workmilitary/naval/air base4company/organization [countable, uncountable]COME FROM/ORIGINATE the main place from which a person, company, or organization controls their activitiesbase for 🔊 He used the house as a base for his printing business.5people/groups [countable usually singular]ALL/EVERYTHING the people, money, groups etc that form the main part of something 🔊 The company has built up a loyal customer base. 🔊 By broadening the tax base (=all the people who pay taxes), he could raise more revenues. 🔊 an attempt to strengthen the city’s economic base (=things that produce jobs and money) 🔊 The country’s manufacturing base (=all the factories, companies etc that produce goods in a country) has shrunk by 20%. →power base6substance/mixture [singular, uncountable]MIX the main part of a substance, meal etc to which other things are added 🔊 paint with an oil basebase for 🔊 Vodka is the base for many cocktails.7sport [countable]DSB one of the four places that a player must touch in order to get a point in games such as baseball8 →be off base9chemical [countable]HCC technical a chemical substance that combines with an acid to form a salt10numbers [countable usually singular]HM technical the number in relation to which a number system or mathematical table is built up, for example 10 in the decimal system11 →touch base (with somebody) —basal adjective → cover (all) the basesat cover1(12)COLLOCATIONS – Meaning 2: the most important part of something, from which new ideas developadjectivesa good baseThis data provided a good base for further research.a solid/firm/strong baseA good education should give you a solid base for life.a sound/secure baseA child needs a responsive mother in order to form a secure base for future development.a broad baseThe first year of the course aims to provide students with a broad base of knowledge.a knowledge baseYou’re building up a knowledge base that you’ll be able to use later.verbshave a basePermanent staff have a better base from which to plan their career development.provide a baseIt is essential to provide a sound base from which economic progress can be made.build a baseBy concentrating on our core businesses we will build a strong base from which to exploit future opportunities.give somebody a baseThe training gives you a broad base in actually running an organization.